Even better:

>>> for s in map(unicodedata.name, found): print(s)
... 
LATIN SMALL LETTER F
LATIN SMALL LETTER O
LATIN SMALL LETTER O
LATIN SMALL LETTER O
COMBINING DIAERESIS
LATIN SMALL LETTER B
LATIN SMALL LETTER A
LATIN SMALL LETTER R
>>> for s in map(unicodedata.name, expected): print(s)
... 
LATIN SMALL LETTER F
LATIN SMALL LETTER O
LATIN SMALL LETTER O
LATIN SMALL LETTER O WITH DIAERESIS
LATIN SMALL LETTER B
LATIN SMALL LETTER A
LATIN SMALL LETTER R
>>> found == expected
False
>>> unicodedata.normalize('NFC', found) == unicodedata.normalize('NFC', 
expected)
True

So there are two separate issues, both of which just require fixing the 
tests:  one issue is that OS X transforms invalid filenames;  the other is 
that it normalizes valid filenames.